JP2019091484A - Detection device, detection method, and program - Google Patents

Abstract

To improve the detection accuracy of an apparatus in the vicinity of a card insertion port.SOLUTION: A detection device includes: first light emitting means for emitting first detection light; second light emitting means for emitting second detection light that is provided on an opposite side of the first light emitting means with respect to a card insertion port to which a card is inserted; detection means for detecting the first detection light and the second detection light that is provided at a position separated from the first light emitting means and the second light emitting means by a predetermined distance; and determination means for making the first light emitting means and the second light emitting means emit light by using respective predetermined patterns, determining whether or not color information of a predetermined position is identical to color information stored in advance when the first light emitting means and the second light emitting means do not emit light in the case where at least one of the pattern of the first detection light and the pattern of the second detection light is not identical to a pattern for emitting light, and determining that a foreign matter is attached thereto in the case where the color information of the predetermined position is identical to the color information stored in advance.SELECTED DRAWING: Figure 4

Description

  The present invention relates to the detection of an object, and more particularly to a detection device, a detection method, and a program for detecting foreign matter in a card insertion slot.

  Automated trading machines such as ATM (Automated Teller Machine) or CD (Cash Dispenser) are widely used. The automated teller machine performs user authentication using information written on a card (for example, a magnetic card that magnetically stores information).

  In recent years, the so-called skimming crime, which involves fraudulently stealing information written on a card, has become a social problem.

  An unauthorized person attempting to perform skimming wears a device (a skimming device or a skimming unit) for reading information recorded on the card in a card insertion slot such as an ATM or a CD. Therefore, a detection device for coping with skimming monitors or detects attachment of an unauthorized device (unit) at a card insertion slot (see, for example, Patent Documents 1 and 2). Such a detection device uses, for example, an infrared sensor as a detector for detecting a skimming device.

  It is desirable that the detection device be able to detect an unauthorized device (skimming unit) as much as possible. Therefore, it is desirable that the detection device has high detection accuracy and a wide detection range.

  However, in the environment where the detection device is installed, there are factors that affect the detection performance of the detection device. Such factors include factors related to light (eg, ambient light such as sunlight and illumination), factors related to the light receiving portion (eg, dust or dirt), and factors related to the vicinity of the card slot. (For example, insects, users, or belongings of users).

  If the detection sensitivity of the detector of the detection device is improved in order to improve the detection accuracy or the detection range, the detection device is susceptible to the above factors.

  Therefore, various methods are used as in Patent Document 1 and Patent Document 2.

  In the technology described in Patent Document 1, foreign objects sensors are provided above and below the card insertion slot to improve detection accuracy.

  Further, in the technique described in Patent Document 2, a light beam having a lattice pattern is irradiated, and reflected light is photographed by an infrared surveillance camera.

Unexamined-Japanese-Patent No. 2010-250711 JP, 2008-027259, A

  However, the foreign matter sensor described in Patent Document 1 can detect only a limited position near the card insertion slot. That is, the technique described in Patent Document 1 has a problem that the range in which foreign matter can be detected is narrow.

  Further, in the technique described in Patent Document 2, it is necessary to irradiate light beams of a lattice-like pattern in a predetermined range. In order to irradiate a light beam in a grid pattern, a light source (for example, a laser light source) for emitting a light beam that can be narrowed to a predetermined range and an optical device for focusing the light beam are required. In addition, in order to irradiate light beams in a grid pattern, high-precision optical devices such as polygon mirrors are required. That is, the technology described in Patent Document 2 has a problem that high-performance and high-precision optical equipment (hereinafter referred to as advanced optical equipment) is required.

  An object of the present invention is a detection device, detection method, and program for solving the above problems and improving the detection range and detection accuracy of the device provided in the card insertion slot without requiring the advanced optical device. It is to provide.

  The detection device according to one aspect of the present invention includes a first light emitting unit that emits a first detection light, and a first light emitting unit provided on the opposite side of the first light emitting unit with respect to a card insertion slot for inserting a card. A second light emitting means for emitting the second detection light, and a first light emitting means and a second light emitting means disposed at a predetermined distance away from each other for detecting the first detection light and the second detection light Detection means, the first light emitting means and the second light emitting means emit light using respective predetermined patterns, and the detection means acquires the pattern of the first detection light and the pattern of the second detection light To determine whether the pattern of the first detection light and the pattern of the second detection light match the pattern for emitting light, and the pattern of the first detection light or the pattern of the second detection light At least one of them does not match the pattern for emitting light In this case, the color information of the predetermined position when the first light emitting means and the second light emitting means do not emit light is acquired, and the acquired color information matches the color information stored in advance. And determining means for determining that a foreign object is attached when the color information matches.

  The detection method according to one aspect of the present invention includes a first light emitting means for emitting a first detection light, and a first light emitting means provided on the opposite side of the first light emitting means with respect to a card insertion slot for inserting a card. A second light emitting means for emitting the second detection light, and a first light emitting means and a second light emitting means disposed at a predetermined distance away from each other for detecting the first detection light and the second detection light Detecting means for causing the first light emitting means and the second light emitting means to emit light using their respective predetermined patterns, and using the detecting means for detecting the pattern of the first detection light and the second detection A pattern of light is acquired, and it is determined whether or not the pattern of the first detection light and the pattern of the second detection light match the pattern for emitting light, and the pattern of the first detection light or the second At least one of the detection light patterns of If the first light emitting means and the second light emitting means do not emit light, the color information of the predetermined position is acquired, and the acquired color information and the color information stored in advance It is determined whether or not there is a match, and if the color information matches, it is determined that a foreign object is attached.

  The program according to one aspect of the present invention includes a first light emitting means for emitting a first detection light, and a second light emitting means provided on the opposite side of the first light emitting means to a card insertion slot for inserting a card. And a second light emitting means for emitting the detection light from the first light emitting means and the second light emitting means for detecting the first detection light and the second detection light. Processing the light emitting means and the second light emitting means to emit light using respective predetermined patterns in a computer which is a detecting device including the detecting means; A process of acquiring a pattern of the second detection light, a process of determining whether or not the pattern of the first detection light and the pattern of the second detection light coincide with the pattern for emitting light; Pattern of the second detection light or Acquiring the color information of the predetermined position when the first light emitting means and the second light emitting means are not emitting light when at least one of the frames does not match the pattern for emitting light; A process of determining whether or not the color information matches the color information stored in advance, and a process of determining that a foreign object is attached when the color information matches are performed.

  According to the present invention, it is possible to achieve the effect of improving the detection range and detection accuracy of the device provided in the card insertion slot without the need for advanced optical devices.

FIG. 1 is a diagram showing an example of the configuration of a detection apparatus according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view showing an example of the configuration of the detection device according to the first embodiment. FIG. 3 is a block diagram showing an example of the configuration of the detection device according to the first embodiment. FIG. 4 is a block diagram showing an example of the configuration of a detection apparatus including the detailed configuration of the determination unit according to the first embodiment. FIG. 5 is a flowchart showing an example of the operation of the detection apparatus according to the first embodiment. FIG. 6 is a diagram illustrating an example of another configuration of the light emitting unit according to the first embodiment. FIG. 7 is a block diagram showing an example of another configuration of the detection device according to the first embodiment. FIG. 8 is a block diagram showing an example of another configuration of the detection device according to the first embodiment.

  Next, embodiments of the present invention will be described with reference to the drawings.

  Each drawing is for describing an embodiment of the present invention. However, the present invention is not limited to the description of each drawing. Moreover, the same number may be attached | subjected to the same structure as each drawing, and the description of the repetition may be abbreviate | omitted.

  Further, in the drawings used for the following description, the configuration of parts not related to the description of the present invention may be omitted or not shown.

  In the embodiment of the present invention, a foreign object installed in the vicinity of a card insertion slot for inserting a card is detected. Therefore, in the present embodiment, the card inserted into the card insertion slot is not particularly limited. For example, the card of the present embodiment may be a magnetic card including magnetic stripes on the front surface, the back surface, both surfaces, or inside. Alternatively, the card of the present embodiment may be an IC (Integrated Circuit) card that reads and writes information electrically. Alternatively, the card of the present embodiment may be a card (for example, a magnetic ticket) having a magnetic recording surface on one side. That is, in the following description, a card is an object having a substantially planar shape, and an object whose information is stored on the surface or in the inside.

First Embodiment
First, the configuration of the detection apparatus 100 according to the first embodiment of the present invention will be described.

(Description of the configuration)
FIG. 1 is a diagram showing an example of the configuration of a detection apparatus 100 according to the first embodiment.

  As shown in FIG. 1, the detection device 100 includes a card insertion slot 30, a light emitting unit 40, a light emitting unit 50, and a detection unit 60. As will be described later, the detection device 100 includes a determination unit 20 not shown in FIG. Moreover, when distinguishing the light emission part 40 and the light emission part 50, each is called a 1st light emission part and a 2nd light emission part. In addition, as described later, the detection unit 60 detects the light emitted by the light emitting unit 40 and the light emitting unit 50. Therefore, the light emitted by the light emitting unit 40 and the light emitted by the light emitting unit 50 are respectively referred to as a first detection light and a second detection light.

  The card insertion slot 30 is an opening for inserting the card 10.

  The light emitting unit 40 and the light emitting unit 50 are controlled by the determination unit 20 to emit light in a predetermined pattern as described later. However, the light emitting unit 40 and the light emitting unit 50 only need to emit light which can be detected by the detecting unit 60. Therefore, the light emitting unit 40 and the light emitting unit 50 do not need special optical devices. For example, the light emitting unit 40 and the light emitting unit 50 may be light emitting diodes (LEDs: Light Emitting Diodes).

  In addition, as for the light emission part 40 and the light emission part 50, in order to avoid a user's misidentification, it is desirable to light the light (for example, infrared rays) which a person can not recognize. This is to prevent an unauthorized person attempting to install the skimming device from noticing that the detection device 100 is installed. However, the light emitting unit 40 and the light emitting unit 50 may emit visible light.

  The detection unit 60 detects the light emitted by the light emitting unit 40 and the light emitting unit 50. More specifically, as described later, the detection unit 60 only needs to be able to detect the light in the determination unit 20 so that the light emission patterns of the light emission unit 40 and the light emission unit 50 can be recognized. For example, when the determination unit 20 can detect a pattern based on the light emission state and the extinguished state in the light emission unit 40 and the light emission unit 50, the detection unit 60 can detect the light emission state and the extinguished state of the light emission unit 40 and the light emission unit 50. Good. Therefore, the detection unit 60 does not require a high precision optical system. The detection unit 60 is, for example, an image sensor or a charge coupled device (CCD) camera module.

  And the light emission part 40, the light emission part 50, and the detection part 60 are arrange | positioned in the position demonstrated below.

  The light emitting unit 40 and the light emitting unit 50 are disposed at positions sandwiching the card insertion slot 30. That is, the light emitting unit 40 and the light emitting unit 50 are disposed at positions facing the card insertion slot 30. This is to make it possible to detect an unauthorized device (skimming device) whichever side the card insertion slot 30 is installed.

  The detection unit 60 is disposed on the same side as the light emitting unit 40 or the light emitting unit 50 with respect to the card insertion slot 30 at a position away from the light emitting unit 40 and the light emitting unit 50 by a predetermined distance. Here, the predetermined distance is a distance including a range in which the foreign matter is assumed to be installed. As described above, since the detection unit 60 is separated from the light emitting unit 40 and the light emitting unit 50 by a predetermined distance, the detection device 100 can realize a wide detection range.

  Furthermore, the detection unit 60 is disposed at the following position with respect to the light emitting unit 40 or the light emitting unit 50 disposed so as to sandwich the card insertion slot 30.

  As an example, it is assumed that the detection unit 60 is disposed on the same side as the light emitting unit 40. In this case, the detection unit 60 is arranged at the following position. That is, the detection unit 60 is disposed at a position where the light emitted by the light emitting unit 40 can be detected. Furthermore, the detection unit 60 can detect light emitted by the light emitting unit 50 when the card 10 is not inserted into the card insertion slot 30, and when the card 10 is inserted into the card insertion slot 30, the light emitting unit 50 are arranged at positions where light emitted can not be detected.

  Therefore, the detection unit 60 can detect the light emitted by the light emitting unit 40 as long as there is no foreign matter. In addition, when the card 10 is not inserted into the card insertion slot 30, the detection unit 60 can detect the light emitted by the light emission unit 50 as long as there is no foreign object. However, when the card 10 is inserted into the card insertion slot 30, the detection unit 60 can not detect the light emitted by the light emitting unit 50.

  However, the detection unit 60 may be disposed at a position where the light emitted by the light emitting unit 50 can be detected regardless of the position of the card 10.

  Moreover, although the detection apparatus 100 is shown as including the light emission part 40, the light emission part 50, and the detection part 60 one each in FIG. 1, this is an example. The detection device 100 may include a plurality of light emitting units 40, light emitting units 50, and detection units 60, or all of them.

  For example, the detection apparatus 100 may include two light emitting units 40, a light emitting unit 50, and a detection unit 60 so as to sandwich the vicinity of the left and right ends of the card insertion slot 30.

  Alternatively, the detection device 100 may detect the light emitted by the light emitting unit 40 and the light emitted by the light emitting unit 50 using different detection units 60. However, even in this case, the detecting unit 60 for detecting the light emitting unit 50 can detect the light emitted by the light emitting unit 50 when the card 10 is not inserted, and when the card 10 is inserted, the light emitting unit 50 are arranged at positions where light emitted can not be detected.

  In addition, as for the light emission part 40, the light emission part 50, and the detection part 60, it is desirable to arrange | position in the position demonstrated below.

  When the detection apparatus 100 uses a card 10 including a magnetic stripe, the skimming device is arranged around (in the vicinity of) the card insertion slot 30 at a position where the magnetic stripe passes when the card 10 is transported. In order to detect the skimming device arranged in this manner, it is desirable that the light emitting unit 40 and the light emitting unit 50 be arranged so as to sandwich the position where the magnetic stripe of the card 10 passes through in the card insertion slot 30. The detecting unit 60 is preferably disposed at a position where foreign matter can be detected at a position where the magnetic stripe of the card 10 passes.

  Moreover, FIG. 1 shows the card insertion slot 30 horizontally, but this is an example. The detection device 100 may be provided with the card insertion slot 30 in the vertical direction. In that case, the light emitting unit 40, the light emitting unit 50, and the detecting unit 60 may be arranged side by side in the horizontal direction so as to sandwich the card insertion slot 30.

  In the following description of the present embodiment, as an example, as illustrated in FIG. 1, the detection device 100 is described as including one light emitting unit 40, one light emitting unit 50, and one detection unit 60.

  FIG. 2 is a cross-sectional view of the detection device 100 taken along line A-A in FIG.

  The detection device 100 shown in FIG. 2 includes a transport unit 80 in addition to the configuration shown in FIG. In FIG. 2, the components shown in FIG. 1 are assigned the same reference numerals and detailed explanations thereof will be omitted. Therefore, the transport unit 80 will be described below.

  The transport unit 80 transports the card 10 automatically. For example, the detection device 100 operates as follows. The detection device 100 includes an insertion sensor that detects the insertion position of the card 10 (not shown). Then, when detecting that the card 10 is able to be transported using the transport unit 80 based on the insertion sensor, the detection apparatus 100 transports the card 10 using the transport unit 80. The transport unit 80 is, for example, a roller.

  FIG. 3 is a block diagram showing an example of the configuration of the detection apparatus 100 according to the first embodiment.

  As already described, the detection apparatus 100 shown in FIG. 3 includes the determination unit 20 that determines the presence or absence of foreign matter in addition to the configuration shown in FIG. The same numerals are given to the composition shown in Drawing 1, and the detailed explanation is omitted. Therefore, the determination unit 20 will be described below.

  The determination unit 20 causes the light emitting unit 40 and the light emitting unit 50 to emit light in a predetermined pattern. Here, the predetermined pattern is not particularly limited. For example, the determination unit 20 may hold a plurality of patterns, select a pattern from them, and use the selected pattern.

  Here, the pattern is a pattern in which the determination unit 20 causes the light emitting unit 40 and the light emitting unit 50 to emit light and to turn off the light. More specifically, the pattern is a combination of light emitting time and light off time, including one or more light emitting time and light off time.

  The determination unit 20 may change the light emission color or the light emission intensity as the light emission pattern of the light emission unit 40 or the light emission unit 50 without limiting to the light emission time and the light extinction time. In this case, it is desirable that the detection unit 60 can detect the color or light intensity of the light emitted by the light emitting unit 40 and the light emitting unit 50.

  Hereinafter, it is called a pattern including changes in color and light intensity.

  However, it is desirable that the pattern used by the determination unit 20 is unlikely to be predicted by the skimming device. Therefore, it is desirable that the determination unit 20 cause the light emitting unit 40 and the light emitting unit 50 to emit light using a random pattern. Here, a random pattern is a pattern which can not estimate the next luminescence pattern from the past luminescence pattern. That is, the random pattern is a pattern that can not be estimated by other devices such as skimming devices.

  Therefore, the determination unit 20 may include, for example, a random pattern generation unit (not shown), and cause the light emission unit 40 and the light emission unit 50 to emit light using a pattern generated by the random pattern generation unit. Alternatively, the determination unit 20 may include a pseudo random number generation circuit (not shown), and may determine the light emission time and the light extinction time of the light emission pattern based on the random numbers generated by the pseudo random number generation circuit. Alternatively, the determination unit 20 may hold a plurality of random patterns in advance, and select a light emission pattern from the held random patterns using pseudo random numbers. Hereinafter, these operations are collectively referred to as “random pattern selection”.

  Then, the determination unit 20 determines the presence or absence of a foreign object such as a skimming device based on the pattern (detection result) detected using the detection unit 60 when the light emitting unit 40 and the light emitting unit 50 emit light. More specifically, when the light emitting unit 40 and the light emitting unit 50 emit light and the pattern used when the light emitting unit 50 emits light do not match the pattern recognized using the detecting unit 60, the determining unit 20 determines that there is a foreign object. .

  Further, the determination unit 20 determines the type of the foreign matter based on the information (color information) on the color of the predetermined position detected by the light emitting unit 40 and the detecting unit 60 when the light emitting unit 50 is not emitting light. Here, the color information is information for calculating a color difference to be described later. Therefore, the detection apparatus 100 may determine color information based on the color difference used for the determination.

  Next, the determination unit 20 will be further described with reference to the drawings.

  FIG. 4 is a block diagram showing an example of the configuration of the detection apparatus 100 including an example of a more detailed configuration of the determination unit 20. As shown in FIG. The same reference numerals as in FIG. 3 denote the same parts in FIG. Therefore, the detailed description of the same configuration is omitted.

  Determination unit 20 includes a drive unit 240, a drive unit 250, a recognition unit 260, and a control unit 270. When the drive unit 240 and the drive unit 250 are distinguished, they are hereinafter referred to as a first drive unit and a second drive unit, respectively.

  The driving unit 240 drives the light emitting unit 40 based on the control of the control unit 270. That is, the driving unit 240 causes the light emitting unit 40 to emit light using the pattern selected by the control unit 270 based on the instruction of the control unit 270. The driving unit 240 may directly control the light emitted by the light emitting unit 40. Alternatively, the driving unit 240 may control the light emission of the light emitting unit 40 indirectly. For example, when the light emitting unit 40 includes an LED and a liquid crystal shutter, the driving unit 240 may control the liquid crystal shutter to control the light emitted by the light emitting unit 40.

  The driving unit 250 drives the light emitting unit 50 based on the control of the control unit 270. That is, the drive unit 250 causes the light emitting unit 50 to emit light using the pattern selected by the control unit 270 based on the instruction of the control unit 270. The drive unit 250 may control the light emitting unit 50 directly or indirectly as the drive unit 240 does.

  When the determination unit 20 causes the light emitting unit 40 and the light emitting unit 50 to emit light in the same pattern simultaneously, the determination unit 20 uses either one of the drive unit 240 or the drive unit 250 to emit light from the light emitting unit 40 and the light emission. The unit 50 may emit light. In that case, the determination unit 20 may not include any one of the drive unit 240 or the drive unit 250.

  The recognition unit 260 recognizes or extracts information used for the determination by the control unit 270 from the signal detected by the detection unit 60 based on the control of the control unit 270. That is, the recognition unit 260 recognizes the light emission pattern of the light emitting unit 40 and the light emitting unit 50 based on the detection result of the detection unit 60. Furthermore, the recognition unit 260 extracts color information of a predetermined position used by the control unit 270 based on the detection result of the detection unit 60. The color information need not be limited to the color in the visible light range. For example, this color information may include an infrared band.

  The control unit 270 controls each of the above-described configurations, and controls the overall operation of the determination unit 20. Furthermore, as described later, the control unit 270 controls each of the above-described configurations to determine the presence or absence of foreign matter in the vicinity of the card insertion slot 30 and the type of the foreign matter.

(Description of operation)
Next, the operation of the detection apparatus 100 according to the first embodiment will be described with reference to the drawings.

  FIG. 5 is a flowchart showing an example of the operation of the detection apparatus 100 according to the first embodiment. In the following description of the operation, the subject of the operation is the control unit 270 of the determination unit 20 unless otherwise specified.

  The control unit 270 stores in advance information (color information) of the color recognized by the recognition unit 260 at a predetermined place (position) of the detection range of the detection unit 60. Hereinafter, the color information stored here is referred to as "initial color information".

  For example, the control unit 270 stores initial color information as follows. When the detection apparatus 100 is first installed, the control unit 270 causes the recognition unit 260 to position the light emitting unit 40 and the light emitting unit 50 in a different position in the vicinity of the card insertion slot 30 where the skimming device is highly likely to be attached. Instruct to obtain color information of The recognition unit 260 recognizes color information using the detection unit 60 based on the instruction, and transmits the color information to the control unit 270. The controller 270 stores the received color information as the initial color information. However, the control unit 270 may store color information without being based on the above operation. For example, the control unit 270 may store initial color information calculated based on design information of the detection apparatus 100 in advance.

  In addition, the control unit 270 may store color information of a plurality of positions instead of one as initial color information.

  Next, the details of the specific operation of the detection device 100 will be described. However, in the initial state of the following operation, it is assumed that the light emitting unit 40 and the light emitting unit 50 are turned off.

  First, the control unit 270 of the determination unit 20 selects a random pattern in order to cause the light emitting unit 40 and the light emitting unit 50 to emit light (step S101).

  Next, the control unit 270 causes the light emitting unit 40 and the light emitting unit 50 to emit light using the drive unit 240 and the drive unit 250 so as to match the selected random pattern (step S102).

  Then, the control unit 270 acquires the light emission pattern of the light emitting unit 40 and the light emitting unit 50 using the detection unit 60 and the recognition unit 260 (step S103). More specifically, the detection device 100 operates as follows. The control unit 270 instructs the recognition unit 260 to detect a light emission pattern using the detection unit 60. Based on this instruction, the recognition unit 260 recognizes the light emission pattern in the light emitting unit 40 and the light emitting unit 50 using the detection unit 60. Then, the recognition unit 260 transmits the light emission pattern to the control unit 270 as a recognition result.

  When the recognition unit 260 or the detection unit 60 can not distinguish and recognize the light emitting unit 40 and the light emitting unit 50, the control unit 270 individually controls the light emitting unit 40 and the light emitting unit 50 to perform steps S102 and S103. And do. When the light emitting unit 40 and the light emitting unit 50 emit light separately, the control unit 270 may cause the light emitting unit 40 and the light emitting unit 50 to emit light using different light emission patterns.

  Next, the control unit 270 determines, for each of the light emitting unit 40 and the light emitting unit 50, whether or not the pattern selected in step S101 matches the pattern acquired in step S103 (step S104).

  When the card 10 is inserted into the card insertion slot 30, the detection unit 60 can not detect the light of the light emitting unit 50. For example, when the transport unit 80 is in operation, the detection unit 60 can not detect the light of the light emitting unit 50. However, as described above, the detection device 100 controls the transport unit 80 based on an insertion sensor (not shown). Therefore, the control unit 270 can determine whether the card 10 is inserted into the card insertion slot 30 based on the insertion sensor or the like.

  Therefore, when the card 10 is inserted into the card insertion slot 30, the control unit 270 causes the card 10 to be completely inserted into the card insertion slot 30, or after the card 10 is removed from the card insertion slot 30. The light of the light emitting unit 50 may be detected using the detection unit 60.

  If the light emitting unit 40 and the light emitting unit 50 match in pattern (Yes in step S104), the control unit 270 returns to step S101. That is, the control unit 270 determines that there is no foreign matter.

  When at least one of the patterns does not match the light emitting unit 40 or the light emitting unit 50 (No in step S104), the control unit 270 proceeds to step S105. If at least one of the light emitting unit 40 and the light emitting unit 50 does not match, an object that blocks light, an object that emits light, or an object that reflects light to at least either the upper side or the lower side of the card insertion slot 30 May exist. That is, when the pattern of at least one of the light emitting unit 40 or the light emitting unit 50 does not match, there is a possibility that foreign matter may exist around the card insertion slot 30. Therefore, the control unit 270 proceeds to the next determination.

  Thus, the determination in step S104 is the determination of the presence or absence of a foreign object.

  Here, the skimming device is generally created so as not to be found in order to prevent the detection of fraud. That is, there is a high possibility that the skimming device has the same color as the periphery of the card insertion slot 30. Therefore, as described below, the detection apparatus 100 determines whether the foreign matter is an illegal foreign matter based on the color information.

  If the patterns do not match (No in step S104), the control unit 270 acquires current color information at the position where the initial color information is acquired (step S105). The control unit 270 may instruct the recognition unit 260 to acquire color information based on the same operation as when acquiring the initial color information. The control unit 270 may instruct the recognition unit 260 to acquire color information simultaneously or in parallel with the acquisition of the light emission pattern of step S103. However, the control unit 270 acquires color information when the light emitting unit 40 and the light emitting unit 50 do not emit light. This is because the control unit 270 compares the initial color information with the color information acquired in step S105. Hereinafter, the color information acquired in step S105 is referred to as “detected color information”.

The control unit 270 determines whether or not the initial color information and the detected color information match (step S106). Note that the environment of the detection device 100 changes. For example, the brightness is different between early morning and daytime. Also, the brightness is different between fine weather and rainy weather. Therefore, the control unit 270 determines whether or not the absolute value of the difference (color difference) between the initial color information and the detected color information is equal to or less than a predetermined threshold as the determination of the coincidence between the initial color information and the detected color information. judge. Furthermore, the control unit 270 may detect ambient light using the recognition unit 260 and the detection unit 60 to correct the detected color information. The color difference used in the present embodiment is not particularly limited. For example, the control unit 270 may use a difference in lightness or hue as the color difference. Alternatively, the control unit 270 uses “ΔE ^* ab = ((ΔL ^* ) ² + (Δa ^* ) ² + (Δb ^* ) ² ) ^1/2 ” which is a color difference in the L ^* a ^* b ^* color system. May be

  If the color information does not match (No in step S106), the control unit 270 returns to step S101. That is, the control unit 270 determines that the foreign matter is not an unauthorized foreign substance when the color is clearly different.

  If the color information matches (Yes in step S106), the control unit 270 determines that the foreign matter is a malicious foreign matter (for example, a foreign matter related to the skimming device). Then, the control unit 270 notifies the predetermined device (for example, the alarm device) of the detection of the foreign matter (step S107).

  Thus, the determination in step S106 is the determination of the type of foreign matter.

  In order to bring the determination to the safety side, the detection apparatus 100 may operate to proceed to step 107 when it is determined in step S104 that the patterns do not match (No in step S104). In this case, if it is determined in step S104 that they match (Yes in step S104), the detection apparatus 100 proceeds to step S105.

(Description of the effect)
Next, the effects of the present embodiment will be described.

  As described above, the detection device 100 according to the first embodiment can obtain the effect of improving the detection range of the device in the vicinity of the card insertion slot 30.

  The reason is as follows.

  The detection device 100 arranges the light emitting unit 40 and the light emitting unit 50 so as to sandwich the card insertion slot 30. Then, the detecting device 100 is located at a predetermined distance from the light emitting unit 40 and the light emitting unit 50 on the same side as the light emitting unit 40 or the light emitting unit 50 with respect to the card insertion slot 30. Place on Therefore, the determination unit 20 of the detection device 100 can detect devices in the range from the light emitting unit 40 and the light emitting unit 50 to the detection unit 60. That is, the detection device 100 can detect a foreign object at a predetermined distance from the card insertion slot 30. This is because the detection device 100 can improve the detection range in the vicinity of the card insertion slot 30 based on such a configuration.

  Furthermore, the detection device 100 can achieve the effect of improving the detection accuracy.

  The reason is as follows.

  The determination unit 20 causes the light emitting unit 40 and the light emitting unit 50 to emit light based on a pattern that can not be estimated (for example, a random pattern). Therefore, an unauthorized foreign substance such as a skimming device can not imitate the light emission for detection of the detection device 100. Then, the detection apparatus 100 compares the pattern detected by the detection unit 60 with the pattern emitted by the light emitting unit 40 and the light emitting unit 50. That is, the detection apparatus 100 can detect foreign matter based on a pattern that can not be imitated by the skimming device.

  Furthermore, the detection apparatus 100 determines whether or not there is a change in color information in the vicinity of the card insertion slot 30. Therefore, the detection device 100 can detect a non-illegal foreign object such as an insect or the like in the vicinity of the card insertion slot 30. That is, the detection device 100 can improve the detection accuracy of the fraudulent foreign matter.

  Moreover, the detection apparatus 100 does not require a high precision optical device.

  The reason is as follows.

  The light emitting unit 40 and the light emitting unit 50 may emit light that reaches the detection unit 60. In addition, the detection unit 60 only needs to be able to determine the presence or absence of light. Therefore, the detection device 100 does not require the light emitting unit 40, the light emitting unit 50, and the detecting unit 60 to have high-precision optical devices.

[Modification]
Next, a modification of the first embodiment will be described.

[Modification 1]
The detection unit 60 does not necessarily have to be included in the detection device 100. The detection unit 60 may be an external device of the detection apparatus 100.

  FIG. 7 is a view showing an example of this modification.

  The detection device 101 shown in FIG. 7 includes an external detection unit 70 in place of the detection unit 60 in the detection device 100. Here, the detection unit 70 is, for example, a box-type or dome-type camera generally used for crime prevention. The detection unit 70 may be connected to the detection device 101 not only by wire but also by wireless.

  The detection unit 70 implements the same function as the detection unit 60. Therefore, the detection device 101 according to the modification 1 can exhibit the same effects as the detection device 100.

  Furthermore, this modification can exhibit the effect of further expanding the detection range and improving the freedom of the setting layout of the detection unit 70.

  The reason is that the detection unit 70 can be set at a position different from that of the detection device 101.

[Modification 2]
Either or both of the light emitting unit 40 or the light emitting unit 50 may include a plurality of light emitters (light emitting elements).

  FIG. 6 is a view showing an example of the light emitting unit 41 and the light emitting unit 51 including a plurality of light emitters. The light emitting unit 41 and the light emitting unit 51 each include a plurality of light emitters 401 and light emitters 501.

  The light emitters 401 and the light emitters 501 are, for example, light emitting elements such as LEDs.

  The detection device 100 and the detection device 101 (hereinafter collectively referred to as the detection device 100) may include the light emitting unit 41 and / or the light emitting unit 51 instead of the light emitting unit 40 and / or the light emitting unit 50.

  In the case where a plurality of light emitters are included as in the light emitting unit 41 and the light emitting unit 51, the determination unit 20 may change the number of light emitters to be lighted simultaneously. That is, the determination unit 20 may include the number of light emitters in the pattern.

  In addition to the effects of the first embodiment described above, this modification can exhibit the effect of being able to detect even when the skimming device is miniaturized. In addition, this modification can exhibit the effect of being able to detect the skimming device in a wider range.

  The reason is that since the light emitting unit 41 and the light emitting unit 51 include a plurality of light emitters 401 and light emitters 501, the detection unit 60 can output a more detailed detection result.

  In addition, this modification can exhibit the effect of being resistant to dirt.

  The reason is that since the light emitting unit 41 and the light emitting unit 51 include the plurality of light emitting bodies 401 and the light emitting body 501, even if the light emitting body 401 and the light emitting body 501 are partially contaminated, the detection unit 60 does not This is because the light emitted by the light emitting unit 51 can be detected.

[Modification 3]
In addition, the detection apparatus 100 demonstrated so far is comprised as follows.

  For example, each component of the detection apparatus 100 may be configured by a hardware circuit.

  In addition, the detection device 100 may be configured by using a plurality of devices in which each component is connected via a network.

  In addition, the detection apparatus 100 may configure a plurality of components by one piece of hardware.

  Further, the determination unit 20 of the detection device 100 may be realized as a computer device including a central processing unit (CPU), a read only memory (ROM), and a random access memory (RAM). The determination unit 20 of the detection apparatus 100 may be realized as a computer device further including an input / output connection circuit (IOC: Input / Output Circuit) and a port interface circuit (PIC: Port Interface Circuit) in addition to the above configuration. Good.

  FIG. 8 is a block diagram showing an example of the configuration of the determination unit 600 according to the present modification.

  The determination unit 600 includes a CPU 610, a ROM 620, a RAM 630, an internal storage device 640, an IOC 650, and a PIC 680 to constitute a computer device.

  The CPU 610 reads a program from the ROM 620. Then, the CPU 610 controls the RAM 630, the internal storage device 640, the IOC 650, and the PIC 680 based on the read program. Then, the computer including the CPU 610 controls these components to realize each function as the determination unit 20 shown in FIGS. 3 and 4.

  The CPU 610 may use the RAM 630 or the internal storage device 640 as temporary storage of a program when realizing each function.

  Further, the CPU 610 may read a program included in the storage medium 700 storing a program readable by a computer using a storage medium reading device (not shown). Alternatively, the CPU 610 may receive a program from an external device (not shown) via the PIC 680, save the program in the RAM 630, and operate based on the saved program.

  The ROM 620 stores programs executed by the CPU 610 and fixed data. The ROM 620 is, for example, a P-ROM (Programmable-ROM) or a flash ROM.

  The RAM 630 temporarily stores programs and data that the CPU 610 executes. The RAM 630 is, for example, a D-RAM (Dynamic-RAM).

  The internal storage device 640 stores data and programs that the determination unit 600 stores for a long time. Further, the internal storage device 640 may operate as a temporary storage device of the CPU 610. The internal storage device 640 is, for example, a hard disk device, a magneto-optical disk device, a solid state drive (SSD), or a disk array device.

  Here, the ROM 620 and the internal storage device 640 are non-transitory storage media. On the other hand, the RAM 630 is a volatile storage medium. The CPU 610 can operate based on a program stored in the ROM 620, the internal storage device 640, or the RAM 630. That is, the CPU 610 can operate using a non-volatile storage medium or a volatile storage medium.

  The IOC 650 mediates data between the CPU 610 and the input device 660 and the display device 670. The IOC 650 is, for example, an IO interface card or a USB (Universal Serial Bus) card.

  The input device 660 is a device that receives an input instruction from the operator of the detection device 100. The input device 660 is, for example, a keyboard, a mouse or a touch panel.

  The display device 670 is a device that displays information to the operator of the detection device 100. The display device 670 is, for example, a liquid crystal display. For example, the display device 670 may display the notification of the detection of the foreign object in step S107.

  The PIC 680 relays data exchange with other components (for example, the light emitting unit 40, the light emitting unit 50, and the detecting unit 60) via a bus or a signal line. That is, the PIC 680 operates as part of the drive unit 240, the drive unit 250, and the recognition unit 260. The PIC 680 is, for example, a PCI (Peripheral Component Interface) card, an NIC (Network Interface Circuit) card, or a LAN (Local Area Network) card. Alternatively, the PIC 680 is a parallel input / output circuit (PIO) or an AD / DA (Analog Digital / Digital Analog) converter.

  The determination unit 600 configured in this way can obtain the same effect as the determination unit 20 shown in FIGS. 3 and 4.

  The reason is that the CPU 610 of the determination unit 600 can realize the same function as that of the determination unit 20 based on a program.

Second Embodiment
The detection apparatus 100 may further include a determination operation in addition to the determination described with reference to FIG.

Therefore, as the second embodiment, an additional determination will be described.
The configuration of the second embodiment is similar to that of the detection device 100 shown in FIG. 1 and the detection device 101 shown in FIG. Therefore, the description of the configuration in the second embodiment is omitted. Hereinafter, description will be made with reference to the detection device 101 shown in FIG. However, the present embodiment may be configured using a computer shown in FIG.

  Further, the operation of the detection apparatus 101 according to the second embodiment is the same as that of the first embodiment except for the determination to be added. Therefore, the description of the same operation as that of the first embodiment will be omitted, and the operation specific to this embodiment will be described. The detection apparatus 101 according to the second embodiment may execute the determination described below independently of or in combination with the determination operation in the first embodiment.

  The detection device 101 according to the present embodiment uses the detection unit 70 to determine foreign matter based on the shape of the card 10 at a predetermined position. Here, the predetermined position is, for example, a position where the card 10 is inserted from the card insertion slot 30 by a predetermined length. The detection device 101 may detect a predetermined position using the insertion sensor (not shown) described above.

  More specifically, the detection device 101 operates as follows.

  First, the control unit 270 of the determination unit 20 uses the detection unit 70 and the recognition unit 260 in advance (for example, when the detection device 101 is installed) to determine the shape of the card 10 at a predetermined position (for example, Measure (L) and width (W)) and save. Hereinafter, the shape at this time is referred to as "initial shape".

  The recognition unit 260 may measure the shape of the card 10 using general image processing. For example, the recognition unit 260 may measure the shape of the card 10 based on color information of the image information detected by the detection unit 70.

  However, the detection apparatus 100 may store the initial shape without based on the measurement. For example, the detection device 100 may store the calculated shape value of the card 10 at a predetermined position calculated based on the design specification of the detection device 100.

  Then, when the card 10 is inserted into a predetermined position, the control unit 270 of the detection device 101 measures the shape of the card 10 using the detection unit 70 and the recognition unit 260. Hereinafter, the shape at this time is referred to as a “detected shape”. Note that the detection device 100 may measure the shape every predetermined number of times instead of each time the card 10 is inserted.

  Then, the control unit 270 determines whether or not the initial shape matches the detected shape. As the determination, the control unit 270 determines whether the difference between the initial shape and the detected shape is included in a predetermined range.

  If the shapes match, the control unit 270 determines that there is no foreign matter.

  On the other hand, when the shapes do not match, the control unit 270 determines that there is a foreign matter.

  Thus, in addition to the effect of the first embodiment, the present embodiment can exhibit the effect of improving the detection accuracy of foreign matter.

  The reason is that the determination unit 20 of the present embodiment can detect foreign matter based on the shape of the card 10 at the predetermined position using the detection unit 70 and the recognition unit 260.

DESCRIPTION OF REFERENCE NUMERALS 10 card 20 determination unit 30 card insertion slot 40 light emission unit 41 light emission unit 50 light emission unit 51 light emission unit 60 detection unit 70 detection unit 80 conveyance unit 100 detection device 101 detection device 240 drive unit 250 drive unit 260 recognition unit 270 control unit 401 light emission Body 501 light emitter 600 judgment unit 610 CPU
620 ROM
630 RAM
640 Internal storage 650 IOC
660 input device 670 display device 680 PIC
700 storage media

Claims (8)

First light emitting means for emitting a first detection light;
Second light emitting means for emitting second detection light provided on the opposite side of the first light emitting means with respect to a card insertion slot for inserting a card;
Detection means disposed at a predetermined distance from the first light emitting means and the second light emitting means to detect the first detection light and the second detection light;
The first light emitting means and the second light emitting means are caused to emit light using their respective predetermined patterns, and the detection means is used to obtain the pattern of the first detection light and the pattern of the second detection light It is determined whether the pattern of the first detection light and the pattern of the second detection light match the pattern for emitting the light, and the pattern of the first detection light or the second Acquires color information of a predetermined position when the first light emitting means and the second light emitting means do not emit light when at least one of the detection light patterns does not match the pattern for emitting the light And determining means for determining whether or not the acquired color information matches the color information stored in advance, and determining that a foreign object is attached when the color information matches. apparatus. The determination means
Driving means for emitting light using the respective predetermined patterns of the first light emitting means and the second light emitting means;
A recognition unit that recognizes the pattern of the first detection light and the pattern and color information of the second detection light using the detection unit;
The detection device according to claim 1, further comprising: control means for controlling the drive means and the recognition means to execute the determination. The determination means
Measuring the shape of the card inserted into the predetermined position of the card insertion slot using the detection means;
The detection device according to claim 1 or 2, wherein the presence or absence of a foreign object is determined based on the measured shape and the initial shape held in advance. The detection device according to any one of claims 1 to 3, wherein at least one of the first light emitting means or the second light emitting means includes a plurality of light emitters. The detection means
The detection device according to any one of claims 1 to 4, wherein the detection device is an external device connected to the detection device. The determination means
The detection device according to any one of claims 1 to 5, wherein the first light emitting means and the second light emitting means emit light using different random patterns. First light emitting means for emitting a first detection light;
Second light emitting means for emitting second detection light provided on the opposite side of the first light emitting means with respect to a card insertion slot for inserting a card;
A detection device disposed at a position separated by a predetermined distance from the first light emitting means and the second light emitting means, and detecting means for detecting the first detection light and the second detection light;
Causing the first light emitting means and the second light emitting means to emit light using respective predetermined patterns;
Acquiring a pattern of the first detection light and a pattern of the second detection light using the detection means;
It is determined whether or not the pattern of the first detection light and the pattern of the second detection light match the pattern for emitting the light.
When at least one of the pattern of the first detection light or the pattern of the second detection light does not match the pattern for emitting the light, the first light emitting unit and the second light emitting unit emit light Get the color information of the given position when not
It is determined whether or not the acquired color information matches the color information stored in advance.
It is determined that a foreign object is attached when the color information matches. First light emitting means for emitting a first detection light;
Second light emitting means for emitting second detection light provided on the opposite side of the first light emitting means with respect to a card insertion slot for inserting a card;
A detection unit that is disposed at a predetermined distance from the first light emitting unit and the second light emitting unit and detects the first detection light and the second detection light; On the computer
A process of causing the first light emitting means and the second light emitting means to emit light using respective predetermined patterns;
A process of acquiring a pattern of the first detection light and a pattern of the second detection light using the detection means;
Determining whether or not the pattern of the first detection light and the pattern of the second detection light match the pattern for emitting the light;
When at least one of the pattern of the first detection light or the pattern of the second detection light does not match the pattern for emitting the light, the first light emitting unit and the second light emitting unit emit light Processing for acquiring color information of a predetermined position when the
A process of determining whether or not the acquired color information matches the color information stored in advance;
A process of determining that a foreign object is attached when the color information matches.

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